Grounding resistance measuring device

The invention discloses a ground resistance measuring device, which is used for being electrically connected to a test wire and comprises a ground resistance measuring meter and a limiting piece. The limiting piece is detachable relative to the grounding resistance measuring meter, the limiting piece comprises a first part and a second part which are connected, the first part is provided with a limiting groove, the limiting groove is used for allowing the test wire to penetrate through, the first part is used for limiting the position of part of the test wire, and the second part is used for being inserted into the ground. The grounding resistance measuring device comprises the limiting piece, so that the relative position of the test wire and the land can be limited through the limiting piece, an operator can easily achieve wiring close to an ideal wiring path in an outdoor environment, the current wiring state is easily maintained, and therefore the measuring error of the grounding resistance measuring devi